Every Tuesday, I review the newest Blu-ray releases and let you know whether they’re worth buying, renting or skipping, along with a breakdown of the included extras. If you see something you like, click on the cover art to purchase the Blu-ray from Amazon, and be sure to share each week’s column on Facebook and Twitter with your friends.

“Snowpiercer”

WHAT: The year is 2031 AD, and after a failed global-warming experiment has frozen the planet, killing off nearly all life in the process, the lucky few survivors live aboard the Snowpiercer, a train that perpetually travels around the globe. With a class system in place that divides the population by train car, lower-class passenger Curtis (Chris Evans) leads a rebellion against the oppressors in an attempt to take control of the engine and the fates of his fellow people.

WHY: Fans of Korean director Bong Joon-ho (“The Host”) have been awaiting his English-language debut for quite some time, and that wait was extended even longer when The Weinstein Company delayed its U.S. release over a dispute about the film’s original cut. In the end, Bong was successful in protecting his vision, which is a major victory for both the filmmaker and his would-be audience, especially for a movie as refreshingly unique as “Snowpiercer.” Though it’s not the sci-fi masterpiece that many have lauded it as, the film is one of the better post-apocalyptic thrillers in recent memory. A lot of that credit actually goes to the creators of the French graphic novel on which its based, but Bong brings plenty to the table as well, including some gorgeous visuals and the casting of frequent collaborator Song Kang-ho in a vital role. Chris Evans also turns in a solid performance as the de facto leader of the lower class rebels, while Tilda Swinton steals the show with an amusingly quirky turn as the right-hand woman of the train’s mysterious engineer. The blending of art house sensibilities with mainstream appeal makes for a really intriguing finished product, but the ending is so disappointing that it undermines the ambition and imagination of everything that precedes it.

EXTRAS: The Blu-ray release includes an audio commentary by film critics like Scott Weinberg, James Rocchi and Jen Yamato, a documentary about the making of the movie, additional featurettes on the production process, an interview with Chris Evans and Tilda Swinton, a behind-the-scenes look at the promotional tour, concept art galleries and an animated prologue.

FINAL VERDICT: RENT

“Sex Tape”

WHAT: Desperate to add a little spice back into their life, married couple Jay (Jason Segel) and Annie (Cameron Diaz) decide to make a sex tape trying out every position from “The Joy of Sex.” But when they wake up the next day to discover that the video was accidentally uploaded to the iPads that Jay gifted to various family and friends, they go on a frantic search to track them all down before anyone has a chance to see it.

WHY: “Sex Tape” is an infuriating movie to watch, especially if you don’t like characters that have no common sense. Despite being one giant commercial for the iPad (at one point, Segel’s character even declares how well constructed it is), it doesn’t understand the technology behind the device. Anyone with a basic knowledge of smartphones, tablets and the Cloud knows that Jay’s videos wouldn’t automatically sync to the other iPads unless they were still connected to his Apple account, but there’s absolutely no reason the recipients would do this, because it would essentially render their devices useless. Worse yet, the identity of the mysterious “villain” blackmailing Jay and Annie is an absolute joke, threatening them with putting the video on a popular internet porn site unless they pay a hefty bounty. Jay could just call the website and have them take it down, but they chose a much more excessive method because it seems funnier, even though it’s really not. Cameron Diaz and Jason Segel fail to display a fraction of the chemistry that they had in “Bad Teacher,” and although there are some amusing comments on parenthood in the opening act, once the hunt for the sex tape kicks into gear, the film nosedives quicker than a kamikaze fighter pilot.

EXTRAS: In addition to a selection of deleted scenes, alternate takes and bloopers, there’s a featurette on the chemistry between director Jake Kasdan and his two leads, as well as a discussion with psychotherapist Dr. Jenn Berman about the film.

The screenplay credit may reveal more about “Sex Tape” than it cares to admit. Karen Angelo gets both a story and screenplay credit (yep, this movie was a woman’s idea), with lead actor Jason Segel and his writing partner Nicholas Stoller sharing a joint screenplay credit as well. For the sake of Segel and Stoller’s reputations as writers, we are going to hope that they went into production with Angelo’s draft of the script, only to have Segel and Stoller punch it up once they realized it wasn’t working, and then realizing that there wasn’t enough time to get it completely right, so they settled for this. That is the only way to explain how Segel and Stoller would be part of something so emotionally tone-deaf. The characters in “Sex Tape” don’t have personalities: they have quirks. That’s not the same thing, by a damned sight.

Annie (Cameron Diaz) and Jay (Segel) are harried with children, with neither the time nor the energy to invest in their sex life as they did when they were younger and childless. Both recognize that this is a problem, and they decide to make up for all of the missed opportunities by making a video of them performing every position in the 1972 book “The Joy of Sex.” The plan is for Jay to delete the video in the morning, only he doesn’t. Later the next day, Jay receives a text from an unknown number, telling him that they’ve seen the video. It went out after Jay did a group sync of the contents of his iPad (that was the camera) with several other iPads that he has recently given away to friends and colleagues. Annie is naturally embarrassed, but worse, she gave one of those iPads to Hank (Rob Lowe), who’s considering buying Annie’s mommy blog.

After a mostly disappointing June that saw the release of very few summer tentpole films (and even fewer that were any good), this month seems poised to follow suit with an equally lackluster lineup. There are a couple blockbuster-sized movies on tap in July (like the follow-up to the “Planet of the Apes” prequel and Dwayne Johnson’s long-gestating Hercules film), but everything else feels very un-summery, including a Fourth of July weekend devoid of a big action movie. Instead, America gets to celebrate its freedom with Melissa McCarthy, and that’s pretty telling of just how poor this summer season has been.

“DELIVER US FROM EVIL”

Who: Eric Bana, Edgar Ramirez, Olivia Munn and Chris CoyWhat: NY police officer Ralph Sarchie joins forces with a priest schooled in the rituals of exorcism to combat the possessions that are terrorizing their city.When: July 2ndWhy: I know what you’re thinking: yet another horror movie that’s supposedly inspired by real-life events? But while the setup may seem more than a little contrived, Hollywood has proven on numerous occasions that you can still make an excellent horror film no matter how preposterous its claims may be. (Remember a little movie called “The Exorcist”?) Scott Derrickson is also one of the better directors currently working in the genre, and with a cast that includes Eric Bana and the underrated Edgar Ramirez, “Deliver Us from Evil” certainly has the potential to follow in the footsteps of last year’s “The Conjuring” as one of the surprise hits of this summer.

“TAMMY”

Who: Melissa McCarthy, Susan Sarandon, Dan Aykroyd and Mark DuplassWhat: After losing her job and learning that her husband has been unfaithful, a woman hits the road with her profane, hard-drinking grandmother.When: July 2ndWhy: Melissa McCarthy clearly didn’t get the memo that her 15 minutes of fame are up, because the actress (who’s essentially a less talented female version of Chris Farley) keeps plugging away with dumb movie after dumb movie. And to make matters worse, studios continue to green light these so-called comedies because they make obscene amounts of money. Then again, so do those god-awful spoof films and just about anything produced by Tyler Perry. If “Identity Thief” and “The Heat” weren’t evidence enough that McCarthy is one of the most annoying, undeserving movie stars in Hollywood, then surely “Tammy” (which she co-wrote with husband/director Ben Falcone) will finally put an end to America’s baffling love affair with her.

“DAWN OF THE PLANET OF THE APES”

Who: Andy Serkis, Gary Oldman, Keri Russell, Jason Clarke and Kodi-Smit McPheeWhat: A growing nation of genetically evolved apes led by Caesar is threatened by a band of human survivors of the devastating virus unleashed a decade earlier.When: July 11thWhy: My expectations were pretty low going into “Rise of the Planet of the Apes,” which is why it was such a pleasant surprise that the movie was actually good. But while another installment in Fox’s franchise reboot was inevitable, “Dawn of the Planet of the Apes” seems to have lost a lot of what made the prequel so unique from the rest of the series. It still takes place well before the 1968 original, but now the apes are walking, talking and even riding on horses while firing machine guns. That’s a far cry from Rupert Wyatt’s more down-to-earth prequel, so here’s hoping that director Matt Reeves is able to retain some of the humanity from that film.